Magnetic alloy and method for producing same
    294.
    发明授权
    Magnetic alloy and method for producing same 有权
    磁性合金及其制造方法

    公开(公告)号:US07815752B2

    公开(公告)日:2010-10-19

    申请号:US11910593

    申请日:2006-04-04

    Inventor: Shigeho Tanigawa

    Abstract: Disclosed is a novel process for producing an NaZn13 magnetic alloy which enables to obtain a magnetic alloy having higher characteristics than ever before. Specifically disclosed is a magnetic alloy represented by the following composition formula: (La1−xRx)a(A1−yTMy)bHcNd (wherein R represents at least one or more elements selected from rare earth elements including Y; A represents Si, or Si and at least one or more elements selected from the group consisting of Al, Ga, Ge and Sn; TM represents Fe, or Fe and at least one or more elements selected from the group consisting of Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and x, y, a, b, c and d respectively satisfy, in atomic percent, the following relations: 0≦x≦0.2, 0.75≦y≦0.92, 5.5 ≦a≦7.5, 73≦b≦85, 1.7≦c≦14 and 0.07≦d

    Abstract translation: 公开了一种制造能够获得具有比以往更高特性的磁性合金的NaZn13磁性合金的新方法。 具体公开的是由以下组成式表示的磁性合金:(La1-xRx)a(A1-yTMy)bHcNd(其中R表示选自包括Y的稀土元素中的至少一种或多种元素; A表示Si或Si, 选自Al,Ga,Ge和Sn的至少一种或多种元素; TM表示Fe或Fe,以及选自Sc,Ti,V,Cr,Mn,Co中的至少一种或多种元素 ,Ni,Cu和Zn; x,y,a,b,c和d分别以原子百分比满足以下关系:0&nlE; x&nlE; 0.2,0.75&nlE; y&nlE; 0.92,5.5& 73&nlE; b&nlE; 85,1.7&nlE; c&nlE; 14和0.07&nlE; d <5.0;包含不可避免的杂质)。

    COMPOSITE METAL MATERIAL AND METHOD FOR PRODUCING THE SAME
    295.
    发明申请
    COMPOSITE METAL MATERIAL AND METHOD FOR PRODUCING THE SAME 失效
    复合金属材料及其制造方法

    公开(公告)号:US20100261028A1

    公开(公告)日:2010-10-14

    申请号:US12739175

    申请日:2008-10-16

    Abstract: A method for producing a composite metal material includes preparing a solution containing a surfactant having both hydrophilicity and hydrophobicity, dispersing a nanosized to micro-sized fine carbonaceous substance into a state of being monodispersed in the solution, bringing the solution having the dispersed fine carbonaceous substance into contact with surface of a metal powder particle, drying the metal powder particle to make the fine carbonaceous substance in the monodispersed state adhere to the surface of the metal powder particle via a component of the solution, and thermally decomposing and removing the solution component adhering to the surface of the metal powder particle by heat-treating the metal powder particle either in a hydrogen-containing reducing atmosphere or in a vacuum atmosphere to partially expose the surface of the metal powder particle out of the adhering fine carbonaceous substance, and thus progress diffusion and sintering among the metal powder particles through exposed parts.

    Abstract translation: 复合金属材料的制造方法包括制备含有具有亲水性和疏水性的表面活性剂的溶液,将纳米尺寸的微细粒状碳质物质分散到单分散在溶液中的状态,使具有分散的细小碳质物质的溶液 与金属粉末颗粒的表面接触,干燥金属粉末颗粒,以使单分散状态的细小碳质物质通过溶液的一部分与金属粉末颗粒的表面粘合,并且热分解和除去粘附在其上的溶液成分 通过在含氢还原气氛或真空气氛中对金属粉末颗粒进行热处理,将金属粉末颗粒的表面部分地从粘附的细小碳质物质中露出,从而进行到金属粉末颗粒的表面,从而进行 金属粉末颗粒之间的扩散和烧结 通过暴露部分。

    Method of manufacturing metal-graphite brush material for motor
    296.
    发明授权
    Method of manufacturing metal-graphite brush material for motor 失效
    制造电机用金属石墨刷材料的方法

    公开(公告)号:US07767113B2

    公开(公告)日:2010-08-03

    申请号:US12279244

    申请日:2006-02-24

    Abstract: A method of manufacturing a metal-graphite brush material for a motor, which allows high-density formation of copper particles on the surfaces of graphite particles. The method: attaches copper complex to graphite particles; heat-treats the graphite particles attached with the copper particles, thereby to pyrolyze the copper complex to form copper particles on the surfaces of the graphite particles; forms the graphite particles having the copper particles formed thereon, together with a resin, into a formed product; and reduction-sinters the formed product under a reducing atmosphere to pyrolyze the resin, thereby to form a sintered body and also to reduce copper oxide formed in surface layers of the copper particles during the heat-treating.

    Abstract translation: 一种制造用于电动机的金属 - 石墨刷材料的方法,其允许在石墨颗粒的表面上高密度地形成铜颗粒。 方法:将铜络合物附着在石墨颗粒上; 对附着有铜粒子的石墨粒子进行热处理,从而使铜络合物热解,在石墨粒子的表面形成铜粒子; 将其上形成有铜颗粒的石墨颗粒与树脂一起形成成形产品; 在还原气氛下还原烧结成形体,使树脂热分解,从而形成烧结体,还可以减少在热处理期间铜粒子表面形成的氧化铜。

    Dispersoid reinforced alloy powder and method of making
    297.
    发明授权
    Dispersoid reinforced alloy powder and method of making 有权
    分散增强合金粉末及其制造方法

    公开(公告)号:US07699905B1

    公开(公告)日:2010-04-20

    申请号:US11429918

    申请日:2006-05-08

    Abstract: A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

    Abstract translation: 制造分散强化合金颗粒的方法包括熔化具有腐蚀和/或抗氧化性赋予合金元素,分散质形成元素和基质金属的合金,其中分散质形成元素表现出更大的与 从雾化气体获得的反应物质比合金元素。 熔化的合金与包括反应性物质的雾化气体雾化以形成雾化颗粒,使得反应性物质(a)溶解在固溶体中至雾化颗粒表面下方的深度和/或(b)与分散质 - 形成元素以在雾化颗粒中形成分散质,使其在所述雾化颗粒的表面下方的深度。 雾化的合金颗粒作为固化合金颗粒固化,或作为合金颗粒的固化沉积物固化。 由分散强化的合金颗粒,其沉积物,由于存在耐腐蚀和/或抗氧化性赋予的合金元素,在高温下表现出增强的疲劳和抗蠕变性和降低的磨损以及增强的耐腐蚀和/或耐氧化性。 在颗粒合金基质中的固溶体。

    Method of maintaining particle size
    299.
    发明授权
    Method of maintaining particle size 有权
    保持粒径的方法

    公开(公告)号:US07608158B2

    公开(公告)日:2009-10-27

    申请号:US11374633

    申请日:2006-03-13

    Applicant: J. Ping Liu

    Inventor: J. Ping Liu

    Abstract: The present invention includes particle compositions and methods of fabrication that prevent agglomeration, thereby maintaining particle size and/or shape. Particles of the present invention were prepared after embedding chemically disordered metal-containing particles in at least one salt to form a dispersion. The dispersion of particles in salt was treated to temperatures of at least about 500 degrees Centigrade for several hours. Particles were easily recovered from the dispersion and did not agglomerate. The particles were also absent contaminating salts after performing simple washing and/or rinsing steps. Structural, compositional and/or magnetic characterizations of the metal-containing particles confirmed that they had not agglomerated. When particles with an fcc structure formed a dispersion with at least one salt, the method yielded the formation of particles having an fct structure with high magnetic anisotropy and without a substantial change in size and/or shape. When desired, however, particles shape and/or size may be changed.

    Abstract translation: 本发明包括防止附聚的颗粒组合物和制造方法,从而保持颗粒尺寸和/或形状。 在将化学无序的含金属颗粒包埋在至少一种盐中以形成分散体之后制备本发明的颗粒。 将颗粒在盐中的分散体处理至少约500摄氏度的温度数小时。 颗粒容易从分散体中回收并且不附聚。 在执行简单的洗涤和/或漂洗步骤之后,颗粒也不存在污染盐。 含金属颗粒的结构,组成和/或磁性表征证实它们没有凝聚。 当具有fcc结构的颗粒形成具有至少一种盐的分散体时,该方法产生具有高磁各向异性的fct结构并且没有大小和/或形状的实质变化的颗粒的形成。 然而,当需要时,颗粒的形状和/或尺寸可以改变。

    Fine nickel powder and process for producing the same
    300.
    发明授权
    Fine nickel powder and process for producing the same 有权
    细镍粉及其制造方法

    公开(公告)号:US07604679B2

    公开(公告)日:2009-10-20

    申请号:US11266495

    申请日:2005-11-04

    Abstract: An efficient process for producing fine nickel powder, capable of metallizing the powder at low temperature to prevent its sintering, and fine nickel powder produced by the process, composed of particles having a flat shape, diameter of limited variations and uniform thickness, and suitable for internal electrodes for laminate ceramic capacitors of high electric capacity. The process comprises a step for forming a nickel compound coated with gelatin by adsorbing gelatin on preformed nickel compound particles with different size and shape (Step (A)), and another step for converting said nickel compound coated with gelatin into fine particles containing metallic nickel and nickel oxide by heating the nickel compound coated with gelatin produced in Step (A) in an inert gas atmosphere (Step (B)). It may include an additional step (Step (C)), subsequent to Step (B), for completely reducing nickel oxide in said fine particles by heating at temperature lower than that for Step (B) in a reducing gas atmosphere.

    Abstract translation: 制造能够在低温下金属化粉末以防止其烧结的细镍粉的有效方法,以及由具有平坦形状,有限变化直径和均匀厚度的颗粒形成的由该方法生产的细镍粉,并且适用于 用于层压陶瓷电容器的高电容的内部电极。 该方法包括通过将明胶吸附到具有不同尺寸和形状的预形成的镍化合物颗粒上形成涂有明胶的镍化合物的步骤(步骤(A)),以及将用明胶涂布的镍化合物转化为含有金属镍的细颗粒的另一步骤 和氧化镍,通过在惰性气体气氛中加热在步骤(A)中制备的用明胶制备的镍化合物(步骤(B))。 在步骤(B)之后,还可以包括在还原气体气氛中通过在低于步骤(B)的温度下进行加热来完全还原所述细颗粒中的氧化镍的附加步骤(步骤(C))。

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